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1. 发明授权

US5074568A Shaft seal 失效
标题翻译：轴封
公开(公告)号：US5074568A
公开(公告)日：1991-12-24
申请号：US510851
申请日：1990-04-18
申请人： Erich Bertsch
发明人： Erich Bertsch
IPC分类号： F16J15/18 , F16J15/36 , F16J15/46 , F16J9/20
CPC分类号： F16J15/36 , F16J15/46 , Y10S277/914 , Y10S277/929
摘要： The shaft seal between a fixed housing wall (2) and a revolving shaft (1) consists of a collar (6) fixedly connected to the shaft (1), respectively one leg of the U-shaped sealing rings (69, 71) pressing against this collar. The cavities (14, 15) of the sealing rings (69, 71) can be acted upon, via connections, by a pressure medium, wherein respectively one of the legs of the sealing rings (69, 71) is pressed sealingly against the collar (6). The annular chamber (17) coaxial to the end face of the collar (6) can be filled with a lubricant and/or a coolant by way of an inlet and outlet. This structurally simple shaft seal is arranged in compact fashion. This seal operates in a safe and reliable manner. For the prevention of chemical accidents, a circulating pressure medium can be provided to act only on the sealing ring (69) located closest to the reaction chamber (3), and this pressure medium can be continuously monitored for traces from the reaction chamber (3) by way of an indicator. Upon the occurrence of a leak, the cavity (15) of the second sealing ring (71) is automatically pressurized, which then provides the further sealing action. Thereafter, an exchange or repair of the sealing unit (57) can be prepared at leisure.
摘要翻译：固定壳体壁（2）和旋转轴（1）之间的轴密封件包括分别固定地连接到轴（1）的轴环（6），U形密封环（69,71）的一个腿部压紧反对这个领子密封环（69,71）的空腔（14,15）可以经由连接件被压力介质作用，其中分别将密封环（69,71）的一个腿部密封地压靠在套环（6）。与轴环（6）的端面同轴的环形室（17）可以通过入口和出口填充有润滑剂和/或冷却剂。这种结构简单的轴封以紧凑的方式布置。该密封件以安全可靠的方式运行。为了防止化学事故，可以提供循环压力介质以仅作用于最靠近反应室（3）的密封环（69），并且可以连续监测该压力介质从反应室（3））通过指标。在发生泄漏时，第二密封环（71）的空腔（15）被自动加压，从而提供进一步的密封作用。此后，可以随意准备密封单元（57）的更换或修理。

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